CVE-2025-39823
- Source
- https://cve.org/CVERecord?id=CVE-2025-39823
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39823.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-39823
- Downstream
- Related
- Published
- 2025-09-16T13:00:22.298Z
- Modified
- 2026-05-07T04:15:55.272394Z
- Summary
- KVM: x86: use array_index_nospec with indices that come from guest
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
KVM: x86: use arrayindexnospec with indices that come from guest
min and destid are guest-controlled indices. Using arrayindex_nospec() after the bounds checks clamps these values to mitigate speculative execution side-channels.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39823.json" }- References
-
- https://git.kernel.org/stable/c/31a0ad2f60cb4816e06218b63e695eb72ce74974
- https://git.kernel.org/stable/c/33e974c2d5a82b2f9d9ba0ad9cbaabc1c8e3985f
- https://git.kernel.org/stable/c/67a05679621b7f721bdba37a5d18665d3aceb695
- https://git.kernel.org/stable/c/72777fc31aa7ab2ce00f44bfa3929c6eabbeaf48
- https://git.kernel.org/stable/c/c87bd4dd43a624109c3cc42d843138378a7f4548
- https://git.kernel.org/stable/c/d51e381beed5e2f50f85f49f6c90e023754efa12
- https://git.kernel.org/stable/c/f49161646e03d107ce81a99c6ca5da682fe5fb69
- https://git.kernel.org/stable/c/f57a4bd8d6cb5af05b8ac1be9098e249034639fb
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39823.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-39823
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4180bf1b655a791a0a6ef93a2ffffc762722c782Fixed72777fc31aa7ab2ce00f44bfa3929c6eabbeaf48Fixed31a0ad2f60cb4816e06218b63e695eb72ce74974Fixedd51e381beed5e2f50f85f49f6c90e023754efa12Fixed33e974c2d5a82b2f9d9ba0ad9cbaabc1c8e3985fFixedf49161646e03d107ce81a99c6ca5da682fe5fb69Fixed67a05679621b7f721bdba37a5d18665d3aceb695Fixedf57a4bd8d6cb5af05b8ac1be9098e249034639fbFixedc87bd4dd43a624109c3cc42d843138378a7f4548
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced4.19.0Fixed5.4.298
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.10.242
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.191
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.150
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.104
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.45
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.16.5